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Ainat [17]
3 years ago
8

There are 9 boys and 11 girls in a math class. Which ratios compare the number of girls to the number of

Mathematics
2 answers:
igor_vitrenko [27]3 years ago
4 0
9:11, 9/11 are the only ones because girls are first
astraxan [27]3 years ago
3 0

Answer:

b & e

Step-by-step explanation:

tell me if I am right :)

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Find all x-intercepts and y-intercepts of the graph of the function.<br> F(x)=x³-4x² - 4x + 16
Lady bird [3.3K]

Answer: (0;16)  (4;0)  (2;0)  (-2;0).

Step-by-step explanation:

Y-intercepts of the graph of the function F(x)=x³-4x² - 4x + 16:

x=0\\F(x)=0^3-4*0^2-4*0+16\\F(x)=16.\\Hence,\  (0;16).

X-intercepts of the graph of the function F(x)=x³-4x² - 4x + 16:

F(x)=0\\0=x^3-4x^2-4x+16\\0=(x^3-4x^2)-(4x+16)\\0=x^2*(x-4)-4*(x-4)\\0=(x-4)*(x^2-4)\\0=(x-4)*(x^2-2^2)\\0=(x-4)*(x-2)*(x+2)\\x-4=0\\x_1=4.\\Hence,\ (4;0)\\x-2=0\\x_2=2.\\Hence,\ (2;0)\\x+2=0\\x_3=-2.\\Hence,\ (-2;0).

8 0
1 year ago
Is the answer yes or no tell me please ?
diamong [38]

Answer:

Yes.

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
from a board 4 feet 2 inches long, a board 3 feet 7 inches long is cut what is the lengh of the remaining board?
MrRissso [65]
Math:

Well, you know that 12 inches goes into 1 foot.

So, let's start with just making everything into inches.

4 feet * 12 = 48+2 = 50 inches.

3*12 = 36 inches + 7 = 43 inches.
50 - 43 = 7.

Your answer:
7 inches.
7 0
3 years ago
Simplify sin(tan^(-1)x)
AnnZ [28]
Sin (tan^(-1)X)
Sin (1/tan X)
Sin (1/1 / tan X/1)
Tan X = sin X/cos X

Sin (1/1 / sin X/cos X)
Sin (1/1 • cos X/Sin X)
Sin (cos X/sin X )
Cos X.

I believe the correct answer is cos X.
4 0
3 years ago
An 8 foot square floor is to be covered with square tiles measuring 8 inches on each side. If each tile costs 50 cents, how much
wariber [46]

9514 1404 393

Answer:

  (c) $72

Step-by-step explanation:

Each tile is 8/12 ft = 2/3 ft on a side. Then 8/(2/3) = 12 tiles will fit along each edge of the square area to be tiled. That is ...

  12 × 12 = 144

tiles will be needed to cover the area.

The cost of 144 tiles at $0.50 each is ...

  (144)($0.50) = $72.00

8 0
3 years ago
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